Dynamic measurement of local displacements within curing resin-based dental composite using optical coherence elastography.
46001 - ?
J Biomed Opt
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This study aimed to determine the feasibility of using optical coherence elastography to measure internal displacements during the curing phase of a light-activated, resin-based composite material. Displacement vectors were spatially mapped over time within a commercial dental composite. Measurements revealed that the orientation of cure-induced displacement vectors varied spatially in a complex manner; however, each vector showed a systematic evolution with time. Precision of individual displacements was estimated to be ∼1 ∼1 to 2 μm 2 μm , enabling submicrometer time-varying displacements to be detected.